4. a chlorine-oxygen compound iis found to have a chlorine to oxygen mass ratio of 1.109.whitch of the following chlorine to oxygen mass ratio is possible for a different chlorine-oxygen compound?? a)1.000 b)1.214 c)2.428 d)4.437 e)5.014 是個不懂題目再問什麼的情形.... 17.when 10g samples of the following materials absorb 100J of heat, the temperarure increase undicated is observed. which material has the largest specific heat?? a)water 2K b)wood 6K c)copper 26K d)cemebt 11K e)glass 12K 21.怎樣的電子轉移可放出最長波長在波耳氫原子中 1.3到4 2.4到1 3.4到2. 4.1到5 5.4到3 還有23 28 43 37 39 晚一點我在打題目... --

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